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A coil of 100 turns and area 5 square ce...

A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2T. The normal to the plane of the coil makes an angle of `60^(@)` with the direction of the magnetic field. The magnetic flux linked with the coil is

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A square coil of side 10 cm consists of 20 turns and carries current of 12 A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^(@) with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitude of torque experinced by the coil ?

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Knowledge Check

  • A circular coil of radius 10cm with 100 turns carrying a current of 0.5A lies in a magetic field of 2 T such that the normal drawn to the plane of the coil makes an angles theta with the direction of the field. Work done in rotating the coil to change the angle theta from 0^(@) to 180^(@) is

    A
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    B
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    C
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    D
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  • A circular coil of area 0.1 m^(2) having 200 turns is placed in a magnetic field of 40 T. The plane of the coil makes 30^(@) with the field. If the field is removed for 0.1 s then the induced emf in the coil is

    A
    4000 V
    B
    `4000 sqrt(3)V`
    C
    2000 V
    D
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  • A coil of self-inductance L is placed in an external magnetic field (no current flows in the coil). The total magnetic flux linked with the coil is phi . The magnetic field energy stored in the coil is

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    C
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    D
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    A rectangular loop of area 0.06 m2 is placed in a magnetic field of 0.3T with its plane (i) normal to the field (ii) inclined 30^(@) to the field (iii) parallel to the field. Find the flux linked with the coil in each case.

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